The Garmin GNS-530W GPS/NAV/COM unit is a panel mounted self-contained comprehensive avionics system consisting of an IFR GPS, VHF communications transceiver, VOR, LOC, Glideslope and Color Moving Map. The GNS-530W's display is a 320 by 234 pixel color LCD. The GNS-530W includes two removable front-loaded data cards, one with a Jeppesen database and the second being a Terrain database. The GNS-530W is 4.60 inches high, 6.25 inches wide and weighs 7.00 pounds without connectors or rack. Variations of the GNS-530 include: GNS-530 (10-watt VHF COM transmitter), GNS-530A (16-watt VHF COM transmitter), GNS-530/530A with TAWS (Terrain Awareness Warning System), GNS-530/530A with TERRAIN, and the GNS-530W/530AW with the WAAS upgrade. The GNS-530W is meant to receive its GPS signals from the GA-56 antenna. The GNS-530W also have variations within the model numbers that distinguishes the lighting voltage and color of the bezel.